Filter.



UNITED STATES JOSEPH F. GEISLER, OF NEWYORK, N. Y.

FILTER.

SPECIFIGATION forming part 0f Letters Patent N0. 682,353, dacedSeptember 10, 1901.

Serial N0. 62,033. (N0 model.)

T0 aZZ wh07n z't may c0ncern:

B0 it known that I, JOSEPH F. GEISLER, a citizen of the United States,residing at New York, in the eounny of New York and State 0f New York,have invented a oertain new and useful1mprovement in Filters; and I dohereby declare the following to be a f all, olear, and exa0t deseriptionof the invention, such as will enable others skilled in the ar1; towhieh it appertains 110 make and use the same.

My invention relaes 110 improvements in filters, and more especially tothais dass of filters designed to be directly conneot'ed 00 faucets ofwater-supply pipes; and my invention consists in the novel cornbination,0011- struetion, and arrangemenb of the parts. 1 The objects of rnyinvention are to render it more easy so cleanse the filtering niedium-of filters, to faoilitate the rernoval and replacemenu' of ehefiltering material, and t0 make the filter as simple, oompaot,effieient, and inexpensive as possible. These objects are attained inthe in vention herein desoribed, and illustrated in the drawings Whichaccornpany and forma a part of this'speoification, and in which Figure 1is a side elevation of my improved filter. Fig. 2 is a longitudinalseotion thereof on a plane parallel so Fig. l, and Fig. 3 is a detailsecoion of the lower portion of the filter on a plane at right angles tothab of Figs. 1 and 2 and illustraces the constrnction 0I" the valves.

My filter consists, eSsentially, 0f a ehamber adapted 110 conainfiltering material, whieh material is preferably in the form 0f a diskadapted to fit elosely within said eharnber, said ohamber being providedwith inlet and outlet passages, eaeh of which is eonneoted by branohesWinh the said eharnber on both sides of the filtering material, and insaid inlet and oulet passages are valves by which water may be eaused soflow through the filtering material eitzher in the normal or in thereverse direotion an will er rnay be eaused 130 flow through the ehamberwithout passing; through the filtering material.

In the drawings, a is the said charnber, adapted t0 oontain ehefiltering material, and b and 0 are removable screw-caps by whieh theends of the said chamber are elosed normally. d and e are projeetionsfrom said letz-passage g. There are nwo brauch passages h andieommuni@ating With the interior of the ehamber a on opposite sides ofEhe position of the filtering material within said eham her and adaptedto be oonneeted With the inlet-passage f by means of an ordinaryrotaryplug-valve 7c, whioh is capable of eonneoting either of said brauchpassages wih Ehe inletzpassage, but not of conne'eting bothsimultaneously therewith. There are corresponding braneh passages Z and m, either oneof whieh may be placed in eommunieation with 1;he outlet-passage g bymeans of a rotary plugvalve n.

0 designates the filtering niaterial. F01 this maoerial I prefer to useasbesaos or asbestie material in the form 0f a disk adapted to fitelosely within tl1e ehamber a of Ehe filter and having sorne slightelasticity. Asbestos is a good filtering material and has the importani;advantage that ii; is 11011 s'ubje0t t0 decomposition and may loerendered pe=rfeetly aseptie by the applieation of heat witahout injury;but I do 11013 limit myself .to the use of asbestos and may employ otherwell-known filtering materials instead.

The filtering-disk 0 is looated between two perforated plates p and q.Plato q abuts against an internal ring 01 fiange 1' of the chamber a.The serew-eap b is provided with projections s, whieh when saidserew-cap is in pla0e press the perforated plate p against thofiltering-disk 0 and so press the latter against ehe perforated plate q.Both of. these perforated plates are provided on their sides adjacent t0the disk with projeeting flanges t, whioh being narrow depress bhefiltering material slighuly, beoause of its slight elastioity, and thushold it firmly in plaoe, a1; the same tin1e pressing the materialagainst the Walls 0f the chamber a, so as 130 prevenb the passage ofwater around the disk. Sorewcaps b and c 1nay be intereh'angeable andare so shown in the drawings, and for this reason sorew-cap c may beprovided With projeotions s, similar in every respeot 130 those 0fserew- 0ap b, although the said projeetions of .serewcap c have 110funetion.

material o, and then passes ouuward through.

passages m and g and the por of va1ve n. T0 c1ean the filter, va1ves 7cand n may 100 reversed, thus causing the water '00 flow through 1ahefiltering material in the reverse dipe tion, and if this water be heated130 ne2tr the 100i,-

may be within. Lhe filtering nfi1aterial will be killed, 0r the flow ofwater having been Gut oft a1: he fauceb to which the filter is 00x1-nected the screw-caps b and t: may be PG- moved and then thefiltering-disk its'elf may be removed and purified by heating it o'r inany other suitable way, and in the same way the filtering-disk may beremoved when Worn 01113 and a new disk substiute. therefor.

If i'm be desired to permi free flow of hob 01 001d water through tahefilter without passing such water through the filtering material, thevalve n may be reversed, the va1ve k being retained in the positionshown in the drawings, or the va1ve 70 may be reversed and thevalve nretained in the posibion shown in the drawings.

Having thus completely deseribed my invention, what; I c1aim, and desireto secure by Letters Patent, is

l. In a filter, the cornbination, With a filtering-chamber, adapted '00eontain a disk of filbranches, a disk 0f 'elastic filtering mat6rial'adapted to fit elose1y within said ehamber, perforated supporbing-platestherefor, said plates having flanges 0n the sides adjacenb 130 thefiltering-disk, whereby said disk may be pressed againsb the Walls ofthe filtering-chamher, and means for pressing said p1ates against saiddisk. l

2. In a filter, the combinmtion, witl i a filtering-chaniber, adapted t0cori taixi a disk of filt'ering'* nlaterial, and provided vvith reinvableapS upon theopposite sides of said disk, in- 1et and ontlet passages,6ach of said pussageS beig 1jrovided with branchk'es (vom 1'1'1unicating9: With the (zhamber upon opposite sides 0f 11116 position of'ohe filtering-disk, of Valves controlling the flow of water throughsaid branches, a disk of filtering material within said 01mmber, andperforaed supporting-plates therefor, one abutting against a projeeoionof the Wall of bhe filtering-chamber, 'uhe screw-cap adjacent t0 oheother 0f said snpporting-plates having projections whereby in may presssaid supporbingplatze against: the filbering-disk, and. tahereby presssaid disk againsb the other supportingplate. 1

In testimony whereof I affix my signature in ohe presence 0f twowitnesses.

JOSEPH F. GEISLER. Witnesses:

I-I. M. MARBLE, A. H. PERLES.

